Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang dat doc snippets" » "nang dau doc snippets", "mang dat doc snippets", "nang dan doc snippets", "nang dat duoc snippets", "nang day doc snippets", "nang dat nuoc snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("nang dat doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang dat doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang dat doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang dat doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.